CN105373302A - False touch prevention method - Google Patents
False touch prevention method Download PDFInfo
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- CN105373302A CN105373302A CN201410529785.1A CN201410529785A CN105373302A CN 105373302 A CN105373302 A CN 105373302A CN 201410529785 A CN201410529785 A CN 201410529785A CN 105373302 A CN105373302 A CN 105373302A
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- 238000000034 method Methods 0.000 title claims abstract description 124
- 230000002265 prevention Effects 0.000 title claims abstract description 79
- 238000009434 installation Methods 0.000 description 52
- 238000010586 diagram Methods 0.000 description 28
- 230000006698 induction Effects 0.000 description 17
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000003750 conditioning effect Effects 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
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Abstract
The embodiment of the invention provides a false touch prevention method applicable to a touch panel, wherein at least one threshold value is arranged in the touch panel and used for distinguishing effective operation and invalid operation. The steps of the anti-false touch method are described below. The touch panel is sensed to acquire touch information. Size information and object type information of the touch object are obtained through the touch information, and whether the touch object is in accordance with a first touch object is judged according to at least one of the size information and the object type information. If the touch object is in accordance with the first touch object, updating at least one of the thresholds according to the size information.
Description
Technical field
The invention relates to a kind of false-touch prevention method for contact panel, and the false-touch prevention method of threshold value particularly between a kind of each operational zone that can dynamically update contact panel, wherein at least one threshold value is in order to distinguish valid function and invalid operation.
Background technology
Along with progressing greatly of touch-control sensing technology, increasing electronic installation adopts contact panel as the input tool outside mouse and keyboard.But when using contact panel, often the false touch of user's palm needs by the FAQs overcome further.
In the sensitive surface product value that the false-touch prevention method of current contact panel produces when being and object being pressed contact panel and contact panel, default a certain threshold value compares, and judges whether be false touch based on this comparative result.For example, the threshold value preset in contact panel is maximum area is T1mm
2when, if be TPmm when there being a certain object to press produced sensitive surface product value
2time, and TP is greater than T1, then can be greater than this threshold value due to sensitive surface product value, therefore assert that this object is not finger or pointer, therefore electronic installation can be touched and is considered as invalid touching, namely be judged as so-called false touch, and the touching signals that contact panel produces do not pressed to this object and carry out associative operation.
So, the key being set to false-touch prevention method of threshold value.If threshold value setting is too harsh, then the normal running of user may easily be affected; Otherwise if threshold value setting is too loose, then the function of false-touch prevention cannot effectively reach.But, due to the finger of each user or hand size not identical, the touching area caused also all is not quite similar, therefore, current false-touch prevention method and cannot for different users can adapt to (adaptively) give preferably operation ease.
Summary of the invention
The embodiment of the present invention provides a kind of false-touch prevention method.Described false-touch prevention method according to user's finger or the different contact pressure area sizes of pointer, dynamically can adjust the threshold value on contact panel between each operational zone, uses the operation ease promoting contact panel, and strengthens the function preventing false touch.
The embodiment of the present invention provides a kind of false-touch prevention method be applicable on any contact panel, is wherein provided with at least one threshold value in contact panel, in order to distinguish valid function and invalid operation.The step of false-touch prevention method is described as follows.Sensing contact panel is to obtain touching information.By the touching information acquisition touching dimension information of object and object kind of information, and judge that this touches object and whether meets one first and touch object according at least one of dimension information and object kind of information.If when this touching object meets the first touching object, then upgrade at least one of threshold value according to dimension information.
In sum, a kind of false-touch prevention method that the embodiment of the present invention provides, computing is carried out by the touching information on contact panel, to judge whether for false touch, and further according to touching information operation accessed by dimension information, upgrade multiple threshold values of contact panel at least one of them.In other words, contact panel can vary in size according to the finger of user, can adjust the threshold value on contact panel between each operational zone with adapting to, to improve the Probability of false touch, and not affect the normal running of user again.
Further understand feature of the present invention and technology contents for enable, refer to following detailed description for the present invention and accompanying drawing, but these illustrate and institute's accompanying drawings is only used for the present invention is described, but not any restriction is done to interest field of the present invention.
Accompanying drawing explanation
Figure 1A is the schematic diagram between each operational zone of the contact panel that the embodiment of the present invention provides.
Figure 1B is the schematic diagram between each operational zone of the contact panel that another embodiment of the present invention provides.
Fig. 1 C is the schematic diagram that the equivalent of the contact panel that another embodiment of the present invention provides adjusts each threshold value.
Fig. 1 D is the schematic diagram that the non-equivalent of the contact panel that another embodiment of the present invention provides adjusts each threshold value.
Fig. 2 is the process flow diagram of the false-touch prevention method that the embodiment of the present invention provides.
Fig. 3 is the process flow diagram of the false-touch prevention method that another embodiment of the present invention provides.
Fig. 4 A is process flow diagram touching information being carried out to the method for computing that the embodiment of the present invention provides.
Fig. 4 B is the center area of the touching object that the embodiment of the present invention provides and the schematic diagram of periphery area.
Fig. 4 C is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.
Fig. 4 D is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.
Fig. 4 E is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.
Fig. 4 F is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.
Fig. 4 G is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.
Fig. 5 is the process flow diagram of the false-touch prevention method that another embodiment of the present invention provides.
Description of reference numerals
T1 ~ T3, T1 ' ~ T3 ': threshold value
1: contact panel
10: finger
10 ': palm
20,20 ': center area
30,30 ': periphery area
S201 ~ S205, S301 ~ S313, S401 ~ S406, S501 ~ S511: process step
Embodiment
Hereinafter, the present invention will be described in detail by graphic explanation various embodiment of the present invention.But concept of the present invention may embody in many different forms, and should not be construed as and be limited to set forth exemplary embodiments herein.In addition, same reference numbers can in order to assembly like representation class in the drawings.
The embodiment of the present invention provides a kind of false-touch prevention method, and described false-touch prevention method goes for, on any contact panel, being wherein provided with at least one threshold value in contact panel, in order to distinguish valid function and invalid operation.Described false-touch prevention method mainly calculates dimension information and object kind of information according to touching information, with judge whether further need to described multiple threshold value at least one of them upgrades.In other words, described its threshold value of false-touch prevention method dynamically ground adjustment, can not make threshold value set too harsh or loose.
(embodiment of the operation block design of contact panel)
First, refer to Figure 1A, Figure 1A is the schematic diagram between each operational zone of the contact panel that the embodiment of the present invention provides.In this embodiment, contact panel is set with threshold value T1, to distinguish valid function and invalid operation.In general, the finger pulp loss area of Asia ethnic group is relatively little, therefore threshold value T1 can be redefined for a less area value.
When the induction area of touching object exceedes threshold value T1, that is induction area falls within invalid operation, then represent that current touching is regarded as invalid touching.For example, when palm accidentally presses to contact panel, due to the size of induction area produced, be obviously greater than threshold value T1, therefore electronic installation can be judged as false touch, and associative operation not carried out to the touching signals that palm produces.On the contrary, if the induction area of touching object is less than or equal to threshold value T1, that is induction area falls within valid function, then electronic installation moves or clicks the corresponding instruction (such as open object or choose object) of object institute by performing cursor according to the track of touching object on contact panel.In other words, by the design in aforesaid operations interval, palm also cannot in the operation of the click of the enterprising line correlation of contact panel or movement, and only has and to point or the particular artifact such as pointer can in the operation of the click of the enterprising line correlation of contact panel or movement.
In addition on the one hand, the present invention does not limit between multiple operational zone and only distinguishes valid function and invalid operation, in other embodiments, except valid function and invalid operation, more can define in addition between other operational zone.
(another embodiment of the operation block design of contact panel)
Refer to Figure 1B, Figure 1B is the schematic diagram between each operational zone of the contact panel that another embodiment of the present invention provides.Specifically, valid function more can be defined as mobile effective district, fuzzy interval and the effective district of click further, wherein separated by threshold value T1 between invalid operation and mobile effective district, separated by threshold value T2 between mobile effective district and fuzzy interval, and fuzzy interval and the effective district of click are separated by threshold value T3.
In this embodiment, threshold value T1 ~ T3 is respectively size, and T1>T2>T3.When the sensitive surface product value touching object is greater than threshold value T1, that is induction area falls within invalid operation, and now touching signal is considered as invalid touching signal by electronic installation, and gets rid of this invalid touching signal.When the sensitive surface product value touching object is greater than threshold value T2 and is less than or equal to threshold value T1, that is induction area falls within mobile effective district, and now this touching signal is considered as the touching signal that only can carry out moving operation by electronic installation.When the sensitive surface product value touching object is greater than threshold value T3 and is less than or equal to threshold value T2, that is induction area falls within fuzzy interval, now this touching signal is considered as the touching signal that only can carry out moving operation by electronic installation selectivity, or is considered as carrying out moving the touching signal with clicking operation.When touching the sensitive surface product value of object and being less than or equal to threshold value T3, that is induction area falls within mobile effective district and clicks in effective district, then electronic installation by this touching signal depending on carrying out moving or the touching signal of clicking operation.
Design between each operational zone that it should be noted that above-described embodiment is all not used to limit the present invention.Have in the art and usually know that the knowledgeable maybe should should be used for carrying out the design between each operational zone according to actual demand, the present invention does not limit the detailed design mode between each operational zone.
Can be learnt by foregoing, the setting of threshold value is the key of false-touch prevention method.But because everyone finger size is not quite similar, therefore the false-touch prevention method of traditional definite value threshold value also effectively cannot judge whether have false touch to produce, and then reduces the operation convenience of contact panel.For example, the finger pulp loss area of American-European ethnic group is greater compared to the finger pulp loss area of Asia ethnic group, when therefore using the threshold value of definite value to judge to carry out false touch, will easily cause the not convenient property in use, and the probability increasing erroneous judgement occurs.Therefore, false-touch prevention method of the present invention can carry out computing by the touching information on contact panel, judge whether be false touch, and foundation is to the dimension information accessed by touching information operation further, dynamically update the threshold value of contact panel, use the operation ease promoting contact panel, and strengthen the function preventing false touch.
(embodiment of false-touch prevention method)
Refer to Fig. 2, Fig. 2 is the process flow diagram of the false-touch prevention method that the embodiment of the present invention provides.The false-touch prevention method system of the embodiment of the present invention can be executed in anyly to be had in the electronic installation of contact panel, is wherein provided with at least one threshold value T1 in contact panel, in order to distinguish valid function and invalid operation.First, in step s 201, contact panel is sensed to obtain touching information.Then, in step S203, according at least one of dimension information and object kind of information, electronic installation by dimension information (having the touching area of the touching object that each time point senses) and the object kind of information of touching information acquisition touching object, and judges that this touches object and whether meets one first and touch object.If when this touching object meets the first touching object, then perform step S205; If when this touching object does not meet the first touching object, then terminate whole false-touch prevention method.In the step S205 of the present embodiment, electronic installation can upgrade this threshold value T1 according to dimension information, if in the enforcement pattern in addition with multiple threshold value (such as: be provided with threshold value T1 ~ T3), at least one (the threshold value T1 such as, between valid function and invalid operation) in those threshold values is then upgraded according to dimension information.
Specifically, in step S201, when touching object pressure and touching on contact panel, contact panel can sense the relevant touching information of this touching object, information of wherein touching be whole contact panel in multiple induction picture frames of different time points, and respectively comprise the induction amount of corresponding each induction point in this induction picture frame.
In addition, have in the art and usually know that the knowledgeable maybe should should be used for carrying out according to actual demand the detailed implementation of the computing carried out in design procedure S203, and the present invention is not limited with detailed implementation described afterwards.In other words, by the computing that step S203 carries out, the false-touch prevention method of the embodiment of the present invention can by the dimension information of touching information acquisition touching object and object kind of information, and according to touching the dimension information of object and at least one of object kind of information, judge whether this touching object meets one first touching object, and when judging to meet, according to dimension information, threshold value can be upgraded.
Subsidiary one carries, and touches the dimension information of object in the embodiment of the present invention, and can refer to area or the width of this touching object, right the present invention is not as limit.In addition, so-called first touching object in the embodiment of the present invention, can refer to effectively touching and the less finger of area or pointer, or is effectively touching and the larger finger of area, and right the present invention is not as limit.In other words, in step S203, judge that the spirit whether this touching object meets the first touching object is be, judge whether to upgrade at least one of threshold value.
In addition, the present invention does not upgrade the detailed implementation of threshold value in conditioning step S205.Have in the art and usually know that the knowledgeable maybe can should be used for carrying out according to actual demand the detailed implementation of design procedure S205.For example, the quantity of the threshold value be if desired updated, then can according to the numerical values recited of dimension information equivalent or each threshold value of non-adjustment equally more than one, to complete the renewal to described multiple threshold value.
For example, refer to Fig. 1 C, Fig. 1 C is the schematic diagram that the equivalent of the contact panel that another embodiment of the present invention provides adjusts each threshold value.Each numerical value of threshold value T1 ~ T3 can be that same increasing has a numerical value a1, and the threshold value between each operational zone after renewal is expressed as T1 ' ~ T3 '.
In addition on the one hand, refer to Fig. 1 D, Fig. 1 D is the schematic diagram that the non-equivalent of the contact panel that another embodiment of the present invention provides adjusts each threshold value.Each numerical value of threshold value T1 ~ T2 can increase respectively numerical value a1, b1, wherein an a1>b1, and threshold value T3 does not upgrade.To this, the threshold value after renewal between each operational zone is expressed as T1 ', T2 ', T3.
It should be noted that the present invention and the detailed design mode of unrestricted equivalent or each threshold value of non-adjustment equally.Have in the art and usually know that the knowledgeable maybe should should be used for carrying out according to actual demand the design of equivalent or each threshold value of non-adjustment equally, the present invention does not limit the detailed design mode of equivalent or each threshold value of non-adjustment equally.
In addition, the present invention for which threshold value of renewal is not restricted, and has in the art and usually knows that the knowledgeable should also can decide to upgrade those threshold values according to actual demand or application.For example, as shown in Figure 1B, contact panel is click effective district, fuzzy interval, mobile effective district and invalid operation by threshold value T1 ~ T3 to mark off, therefore step S205 upgrades for the whole of multiple threshold value T1 ~ T3 or part.Or, as shown in Figure 1A, contact panel only by threshold value T1 to distinguish valid function and invalid operation, therefore step S205 only upgrades for threshold value T1.
One of them object due to the false-touch prevention method of the embodiment of the present invention dynamically upgrades threshold value, to promote the operation ease of contact panel, and reduce the probability that misjudgement is false touch to occur and the operability increasing contact panel, therefore, step S205 can at least upgrade threshold value T1.
Subsidiary one carry be, although the false-touch prevention method of the embodiment of the present invention can on Row sum-equal matrix contact panel the threshold value in each interval, use the operation ease promoting contact panel, and strengthen the function preventing false touch, but under the normal running behavior of non-false touch, the present invention does not limit user and on contact panel, only can carry out cursor move and click the operations such as object, and described the present invention also allows user to carry out gesture behavior on contact panel.The false-touch prevention method of the embodiment of the present invention is after foundation dimension information upgrades at least one of threshold value, a first fault-tolerant value can also be set up to the threshold value T1 between valid function and invalid operation, so that when the enterprising line cursor of contact panel moves, contact panel by mistake locking touches the respective operations of object.In addition, the false-touch prevention method of the embodiment of the present invention also can after foundation dimension information upgrades at least one of threshold value, when sensing touching information system in order to carry out gesture behavior, a second fault-tolerant value is set up to the threshold value T1 between valid function and invalid operation, with the corresponding gesture operation avoiding contact panel to lock touching object by mistake.Moreover the second fault-tolerant value can be greater than the first fault-tolerant value.
In addition on the one hand, the opportunity of threshold value is upgraded in step S205, can be after judging that according to touching information touching object leaves contact panel, just upgrade according at least one to threshold value of dimension information further, and the present invention not limit the opportunity of renewal threshold value.For example, can also be just upgraded before touching object does not leave contact panel.
(another embodiment of false-touch prevention method)
Please continue to refer to Fig. 2, as aforementioned, false-touch prevention method goes on any contact panel.In order to wherein a kind of detailed implementation of the step S203 and step S205 that illustrate further the false-touch prevention method provided about the embodiment of the present invention, refer to Fig. 3, Fig. 3 is the process flow diagram of the false-touch prevention method that another embodiment of the present invention provides.But following false-touch prevention method is only wherein a kind of implementation of the present invention, and it is not intended to limiting the invention.In addition, the step that in Fig. 3, part is identical with Fig. 2 indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2 and Fig. 3, specifically, step S203 more comprises step S301 ~ S309.First, in step S301, electronic installation by the starting area in the dimension information of touching information acquisition touching object, and judges whether starting area is greater than the threshold value T1 between valid function and invalid operation.
When the starting area touching object is greater than threshold value T1, that is starting area falls within invalid operation, then the touching signal of this touching object is first considered as invalid touching signal by electronic installation, and then perform step S303 to lock this touching object to the operation of contact panel, and perform step S305 again.In step S305, electronic installation then can judge whether to unlock the operation of contact panel according at least one of the dimension information in touching information and object kind of information.Determine when needing to unlock the operation of contact panel if judge, then electronic installation can first perform after step S309 unlocks contact panel, then performs step S205 further.If when step S305 judges to determine not need to unlock the operation of contact panel, then electronic installation terminates whole false-touch prevention method.It should be noted that, in practice, have in the art and usually know that the knowledgeable can be designed to outside step S305 not only can judge whether to unlock the operation of contact panel according to actual demand or application, step S305 is re-used as at least one foundation upgraded judged whether threshold value; Or the judged result of step S305 is only as the foundation whether unlocked the operation of contact panel, and at least one foundation upgraded not as whether to threshold value.
In addition on the one hand, when the starting area touching object is less than or equal to threshold value T1, that is starting area falls within the effective district of click, fuzzy interval or mobile effective district, then touching signal of this touching object is first considered as effectively touching signal by electronic installation.Now electronic installation can perform step S307, and in step S307, electronic installation judges whether to upgrade threshold value T1 ~ T3 at least one according at least one of the dimension information in touching information and object kind of information.When determining if judge to need to upgrade at least one of threshold value T1 ~ T3, then electronic installation performs step S205; Determine not need to upgrade any one threshold value T1 ~ T3 if judge, then electronic installation terminates whole false-touch prevention method.
Specifically, the induction area produced when step S301 system touches contact panel at the beginning according to touching object in the false-touch prevention method of the embodiment of the present invention judges that whether the touching signals of this touching object is effective in advance.In other words, the starting area touched at the beginning when touching object falls within invalid operation, then in step S301, electronic installation can first be regarded as invalid touching, and the operation that the touching signals do not produced this touching object is correlated with, and electronic installation performs step S303, to lock the operation of touch-control object to contact panel.On the contrary, the starting area touched at the beginning when object falls within the effective district of click, fuzzy interval or mobile effective district, then in step S301, electronic installation moves or clicks the corresponding instruction of object institute by performing cursor according to the track of this touching object on contact panel, that is can not perform step S303 with the operation of locking to contact panel.
In addition on the one hand, as previously mentioned, because everyone finger size is not identical, therefore only determine whether false touch according to the starting area touched at the beginning, still may have the probability of erroneous judgement.To this, the step S301 in previous embodiment of the present invention judged as the first stage in step S203, and the judged result of step S301 is not expressed as the final judged result of step S203.But, by the judged result of step S301, the false-touch prevention method of the embodiment of the present invention can when not affecting erroneous judgement and occurring, whether be invalid touching first to pick out it, and then determine that the upset operation caused to avoid invalid touching occurs the need of the operation of locking to contact panel in advance.
Then, in order to effectively judge whether be false touch in step S203, after the judged result obtaining step S301, via step S305 or step S307, electronic installation is confirmed whether that the situation of erroneous judgement occurs again respectively further, and at least one judging whether threshold value upgrades.
In addition, the detailed implementation of the present invention not in conditioning step S305 and step S307.Have in the art and usually know that the knowledgeable maybe can should be used for carrying out according to actual demand the detailed implementation of design procedure S305 and step S307.In other words, step S305 and step S307 is designed to identical implementation according to actual demand or application.
In addition, step S205 can comprise step S311 and S313 further, and the mode that step S305 and step S307 upgrades at least one threshold value according to dimension information is different.Or rather, the dimension information that step S305 obtains and/or object kind of information, mainly in order to identify whether this touching object is the finger that a palm or area are larger, and the dimension information that step S307 obtains and/or object kind of information, be then that to identify this touching object be the finger or touching pen that area is less.Threshold value that step S311 carries out upgrades system and designs slightly larger than the object of the threshold value T1 of former setting in order to touch object may be an area, wherein because this touching object is in moving process, contact area between itself and contact panel likely changes (have reduce may) to some extent because of the process of sliding, therefore electronic installation is to upgrade at least one of multiple threshold value T1 ~ T3 according to starting area maximum between touching object and contact panel.On the contrary, it is may be less than designed by the object of the threshold value T1 of former setting for an area to touch object that threshold value that step S313 carries out upgrades system, and therefore electronic installation upgrades according at least one to multiple threshold value T1 ~ T3 of the Maximum Contact area between the touching object in special time or specific range and contact panel.
Refer to Fig. 4 A, Fig. 4 A is process flow diagram touching information being carried out to the method for computing that the embodiment of the present invention provides, and it illustrates further the wherein a kind of detailed implementation about step S305.But following content is only wherein a kind of implementation of the method for above-mentioned computing, and it is not intended to limiting the invention.In addition, the step system that in Fig. 4 A and Fig. 3, part is identical indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3 and Fig. 4 A, specifically, step S305 can comprise step S401.In step S401, electronic installation touches a center area and a periphery area of object by touching information acquisition, and judge whether the area ratio between center area and periphery area is greater than a thresholding (restriction) ratio, to judge whether touching object is palm or other large area objects, and then obtain dimension information and the object kind of information of this touching object.When area ratio is less than or equal to threshold ratio, then touching object is judged as palm, therefore judges to terminate whole false-touch prevention method.In addition on the one hand, when area ratio is greater than threshold ratio, then touching object can be judged as particular artifact (such as, the finger that area is larger or pointer etc.) by electronic installation, and performs step S309.Moreover step S401 also only singly can see that the width of periphery area or peripheral extent comes to compare with a threshold value, when the width of periphery area or peripheral extent is greater than threshold value, then touching object can be judged as particular artifact by electronic installation.
Specifically, area ratio in the false-touch prevention method of the embodiment of the present invention described in step S401 is the capacitance variation that touching object touching contact panel produces, and according to the scope area of this capacitance variation, further obtain dimension information and the object kind of information of this touching object, and judge whether be false touch.For example, if area when finger and palm touching contact panel is words of a size, be only the object kind of information can not being judged this touching object by the computing of step S301.But, although area when this finger and this palm touching contact panel is equally large, but center area during touching is not identical with the area ratio of periphery area, that is, step S401 mainly judges by the area ratio of the center area observed when touching and periphery area the kind touching object.Such as, if during the pressing of finger, the area ratio of center area/periphery area is comparatively large, and if the pressing of palm time, the area ratio of center area/periphery area is less.Therefore, in step S401, by the area ratio between Correlation Centre area and periphery area, to obtain dimension information and the object kind of information of this touching object.In like manner, if in other embodiment aspect, even if when the center area of finger when touching with palm is equally large, but the periphery area pointed when touching with palm also can not be identical.Such as, if during the pressing of finger, the width of periphery area or peripheral extent is relatively little, and if the pressing of palm time, the width of periphery area or peripheral extent is relatively large.To this, generally speaking, step S401 also can be only according to the touching periphery area of object or the width of peripheral extent, as the foundation judging object kind of information.
For example, in the operation that existing Projected capacitive touch panel changes in induced electricity capacitance, mostly the sensor signal of electric capacity is divided into a touchless district, a suspension induction zone and a touching district.In addition, a critical value is arranged at and suspends between induction and touching district, namely represents enter touching district higher than critical value.Refer to Fig. 4 B, Fig. 4 B is the center area of the touching object that the embodiment of the present invention provides and the schematic diagram of periphery area.Such as, the capacitance variation produced when a finger 10 touching contact panel 1, and when inspecting the area shape of this capacitance variation according to XY plane, can further by area 20 centered by the scope cartographic represenation of area in touching district, and namely the scope area suspended in induction zone is expressed as periphery area 30.And when a palm 10 ' is with same contact area touching contact panel 1, the capacitance variation that palm 10 ' causes, the capacitance variation comparatively caused not as finger 10 is come precipitous in general.To this, palm 10 ' touches the area ratio between center area 20 ' and periphery area 30 ' produced, and touches the area ratio between center area 20 and periphery area 30 produced come little compared to finger 10.
It should be noted that the present invention and unrestricted central plane amass with periphery area define mode in detail.Have in the art and usually know that the knowledgeable maybe should should be used for carrying out according to actual demand the design of center area and periphery area, the present invention does not limit the detailed design mode of center area and periphery area.
In addition on the one hand, in order to illustrate further the wherein a kind of detailed implementation about step S307, refer to Fig. 4 C, Fig. 4 C is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.But following content is only wherein a kind of implementation of the method for above-mentioned computing, and it is not intended to limiting the invention.In addition, the step that in Fig. 4 C and Fig. 3, Fig. 4 A, part is identical indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3 and Fig. 4 C, specifically, step S307 also can comprise step S401.First, the step S401 of the present embodiment is identical with the step S401 in earlier figures 4A embodiment, only be when judging that area ratio is greater than threshold ratio, then touching object can be considered as particular artifact (such as by electronic installation, the finger that area is less or pointer etc.), and perform step S313.
In addition on the one hand, the implementation of the step S305 of Fig. 4 A is also not used to limit the present invention, below introduces the another kind of implementation realizing the step S305 of Fig. 3.Refer to Fig. 4 D, Fig. 4 D is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.But following content is only wherein a kind of implementation of the method for above-mentioned computing, and it is not intended to limiting the invention.In addition, the step that in Fig. 4 D and Fig. 3, part is identical indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3 and Fig. 4 D, specifically, step S305 can comprise step S403 and step S404.In step S403, electronic installation then determines a specific range threshold value according to the contact area between each time point this touching object and contact panel in dimension information.If contact area is less than the threshold value T1 between valid function and invalid operation, then to specific range threshold value and this touching object, the sliding distance on this contact panel compares further, and when sliding distance is greater than specific range threshold value, then perform step S309, the operation of contact panel is unlocked.In addition, in step s 404, the working time of whole step S305 and certain special time threshold value, then when failing to meet step S403, compare by electronic installation, and when being more than or equal to special time threshold value operationally, then electronic installation terminates whole false-touch prevention method.
Specifically, step S403 is then when having a change of area or the associative operation such as mobile by touching object, electronic installation can be determined that this touching object has contact panel in fact further and carry out associative operation, and be not that contact panel is arrived in false touch, because the touching object in false touch situation is stationary state mostly.To this, under certain change condition, electronic installation can determine whether unlock the operation of contact panel, whether upgrades at least one of threshold value with decision.Step S404 is that whether the working time judging whole step S305 is long, because when deterministic process working time is excessively of a specified duration, the probability of erroneous judgement is relatively high.To this, under certain working time condition, electronic installation can determine to terminate whole false-touch prevention method, and the flow performing of whole false-touch prevention method again again.Have in the art and usually know that the knowledgeable maybe should should be used for performing according to actual demand the judgement of S404 in steps, and the present invention's not detailed design mode of conditioning step S404 in order to avoid step S305 working time long.
In general, large multi-user can be first to point large-area scope to press contact panel, and in the process of moveable finger, the contact area between finger and contact panel may reduce because of mobile.To this, step S403 system compares according to the contact area in dimension information corresponding to each time point, when contact area is less than threshold value T1, then judge that whether touching object has contact panel by the amount of movement change of touching object further again and carry out substantial operation, therefore electronic installation can determine whether unlock the operation of contact panel, whether upgrade at least one of threshold value with decision.For example, sequentially determine this specific range threshold value according to the contact area of each time point in dimension information, if when the sliding distance in dimension information is greater than specific range threshold value, then represents that touching object has contact panel really and carry out substantial operation.To this, the setting of specific range threshold value can be dynamically determine in the contact area of each time point according to touching object.Such as, if contact area is larger, then specific range threshold value is relatively larger, if contact area is less, then specific range threshold value is relatively less.To this, when the sliding distance that step S403 calculates is greater than specific range threshold value, therefore electronic installation can perform step S309, to unlock the operation of contact panel.
Subsidiary one carries, and by aforesaid description, can know that namely the so-called sliding distance of the embodiment of the present invention is expressed as, the distance measurements that touching object slides on contact panel.Have in the art and usually know that the knowledgeable maybe should should be used for carrying out according to actual demand the measurement of sliding distance, the present invention not limit amount measures the detailed design mode of sliding distance.
In addition on the one hand, the implementation of the step S307 of Fig. 4 C is also not used to limit the present invention, below introduces the another kind of implementation realizing the step S307 of Fig. 3.Refer to Fig. 4 E, Fig. 4 E is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.But following content is only wherein a kind of implementation of the method for above-mentioned computing, and it is not intended to limiting the invention.In addition, the step that in Fig. 4 E and Fig. 3, part is identical indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3 and Fig. 4 E, specifically, step S307 can comprise step S405 and step S406.It should be noted that therefore step S405 system is different from step S403 because step S307 acquired object kind of information identifies that this touching object is the object that an area is less than the threshold value T1 of former setting.In step S405, if in the touching special time that slides on contact panel of object or a specific range, contact area between touching object and contact panel is neither greater than the threshold value T1 between valid function and invalid operation, then electronic installation can determine to upgrade threshold value T1 ~ T3 at least one, and performs step S313.In addition, in step S406, the working time of whole step S307 and certain special time threshold value, then when failing to meet step S405, compare by electronic installation, and when being more than or equal to special time threshold value operationally, then electronic installation terminates whole false-touch prevention method.
Specifically, the step S406 of the present embodiment is identical with the step S404 in earlier figures 4D embodiment, and under being only condition certain working time, electronic installation can terminate whole false-touch prevention method, and the flow performing of whole false-touch prevention method again again, avoids the probability judged by accident to improve.Have in the art and usually know that the knowledgeable maybe should should be used for performing according to actual demand the judgement of S406 in steps, and the present invention's not detailed design mode of conditioning step S406 in order to avoid step S307 working time long.
In addition on the one hand, the implementation of the step S305 of Fig. 4 A or Fig. 4 D is also not used to limit the present invention, below introduces the another kind of implementation realizing the step S305 of Fig. 3.Refer to Fig. 4 F, Fig. 4 F is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.But following content is only wherein a kind of implementation of the method for above-mentioned computing, and it is not intended to limiting the invention.In addition, in Fig. 4 F, the part step system identical with Fig. 3, Fig. 4 A and Fig. 4 D indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3 and Fig. 4 F, specifically, step S305 also can include step S401 and step S403.The step S401 of the present embodiment is identical with the step S401 in earlier figures 4A embodiment, only be when judging that area ratio is greater than threshold ratio, then electronic installation can by touching object except being considered as particular artifact (such as, the finger that area is less or pointer etc.) outward, and perform step S403.Step S403 can determine whether unlock the operation of contact panel more further, whether upgrades at least one of threshold value with decision.In other words, the step S403 of the present embodiment is identical with the step S403 in earlier figures 4D embodiment.
In addition on the one hand, the implementation of the step S307 of Fig. 4 C or Fig. 4 E is also not used to limit the present invention, below introduces the another kind of implementation realizing the step S307 of Fig. 3.Refer to Fig. 4 G, Fig. 4 G is process flow diagram touching information being carried out to the method for computing that another embodiment of the present invention provides.But following content is only wherein a kind of implementation of the method for above-mentioned computing, and it is not intended to limiting the invention.In addition, in Fig. 4 G, the part step system identical with Fig. 3, Fig. 4 C and Fig. 4 E indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3 and Fig. 4 G, specifically, step S307 also can include step S401 and step S405.The step S401 of the present embodiment is identical with the step S401 in earlier figures 4C embodiment, only be when judging that area ratio is greater than threshold ratio, then electronic installation can by touching object except being considered as particular artifact (such as, the finger that area is less or pointer etc.) outward, and perform step S405.Step S405 can determine whether to upgrade at least one of threshold value more further.In other words, the step S405 of the present embodiment is identical with the step S403 in earlier figures 4E embodiment.
(another embodiment of false-touch prevention method)
Refer to Fig. 5, Fig. 5 is the process flow diagram of the false-touch prevention method that another embodiment of the present invention provides.But following false-touch prevention method is only wherein a kind of implementation of the present invention, and it is not intended to limiting the invention.In addition, in Fig. 5, the part step system identical with Fig. 2, Fig. 3, Fig. 4 F and Fig. 4 G indicates with identical figure number, is therefore not described in detail in this its details.
Please refer to Fig. 2, Fig. 3, Fig. 4 F, Fig. 4 G and Fig. 5, specifically, step S203 more comprises step S501 ~ step S511.First, the step S501 of the present embodiment is identical with the step S401 in earlier figures 4F or Fig. 4 G embodiment, only be when judging that area ratio is greater than threshold ratio, then touching object can be considered as particular artifact (finger or pointer etc.) by electronic installation, and performs step S503.
The step S503 of the present embodiment is identical with the step S301 in earlier figures 3 embodiment, only be when the starting area touching object is greater than the threshold value T1 between valid function and invalid operation, the touching signal that then this can be touched object by electronic installation is first considered as invalid touching signal, and then perform step S505 to lock this touching object to the operation of contact panel, and perform step S507.On the contrary, when touching the starting area of object and being less than or equal to threshold value T1, then the touching signal that this can be touched object by electronic installation is first considered as effectively touching signal, and performs step S509.
The step S507 of the present embodiment is identical with the step S403 in earlier figures 4F embodiment, if be only, contact area is less than threshold value T1, and when sliding distance is greater than specific range threshold value, then performs step S511, unlock the operation of contact panel.In addition on the one hand, the step S509 of the present embodiment is then identical with the step S405 in earlier figures 4G embodiment.
Specifically, the embodiment of Fig. 5 and the maximum difference of previous embodiment are, that Fig. 5 performs at first in step S203 is step S501, whether step S501 is greater than threshold ratio according to area ratio, in order to first to judge whether touching object is particular artifact (finger or pointer etc.), and when determining this particular artifact for finger or pointer, just can perform S503 in steps again, whether step S503 is then greater than threshold value T1 according to the starting area of touching object further, to judge that the touching signal of this touching object is effective or invalid signal.To this, electronic installation formerly perform in steps S501 when, can early a step be when judging this touching object for finger or pointer, electronic installation then and then directly can terminate whole false-touch prevention method, avoids the execution carrying out having subsequent step again.In other words, the embodiment of Fig. 5, compared to previous embodiment, when touching object is not particular artifact, more early can terminate whole false-touch prevention method in a step ground, avoid electronic installation to perform unnecessary process step again, and then save the running time of whole electronic installation.
(possible effect of embodiment)
In sum, the embodiment of the present invention provides a kind of false-touch prevention method be applicable on any contact panel.Threshold value on described false-touch prevention method dynamically ground adjustment contact panel between each operational zone, to improve the Probability of false touch, and does not affect the normal running of user again.
The foregoing is only embodiments of the invention, it is also not used to limit scope of patent protection of the present invention.Anyly have the knack of alike those skilled in the art, not departing from spirit of the present invention and scope, the equivalence of the change done and retouching is replaced, and is still in scope of patent protection of the present invention.
Claims (19)
1. for a false-touch prevention method for a contact panel, described contact panel is provided with at least one threshold value in order to distinguish valid function and invalid operation, it is characterized in that, described false-touch prevention method comprises the following steps:
A () senses described contact panel, to obtain a touching information;
B () touches a dimension information and an object kind of information of object by described touching information acquisition one, and judge whether described touching object meets one first and touch object according at least one of described dimension information and described object kind of information; And
If c () described touching object meets described first touching object, then upgrade described at least one threshold value according to described dimension information.
2. false-touch prevention method according to claim 1, wherein, step (b) comprising:
(b1) judge whether the starting area in described dimension information is greater than to distinguish the described threshold value of valid function and invalid operation;
(b2) when described starting area is greater than described threshold value, then lock described touching object to the operation of described contact panel, and judge whether to unlock the operation of described contact panel according at least one of described dimension information and described object kind of information, and judge whether to upgrade described at least one threshold value; And
(b3) when described starting area is less than or equal to described threshold value, then do not lock described touching object to the operation of described contact panel, and judge whether to upgrade described at least one threshold value according at least one of described dimension information and described object kind of information.
3. false-touch prevention method according to claim 2, wherein, step (b3) comprises further:
(b31) a center area and a periphery area of described touching object is calculated according to described touching information;
(b32) if the area ratio between described center area and described periphery area is less than or equal to a threshold ratio, then judge not upgrade described at least one threshold value; And
(b33) if described area ratio is greater than described threshold ratio, then judge to upgrade described at least one threshold value.
4. the false-touch prevention method according to Claims 2 or 3, wherein, step (b3) comprises further:
If in the special time that described touching object slides on described contact panel or a specific range, contact area between described touching object and described contact panel is neither greater than the threshold value between described valid function interval and described invalid operation interval, then judge to upgrade described at least one threshold value.
5. false-touch prevention method according to claim 4, wherein, step (c) comprises further:
In described special time or described specific range, obtain out the Maximum Contact area between described touching object and described contact panel, and upgrade described at least one threshold value according to described Maximum Contact area.
6. false-touch prevention method according to claim 2, wherein, step (b2) comprises further:
(b21) a center area and a periphery area of described touching object is calculated according to described touching information;
(b22) if the area ratio between described center area and described periphery area is less than or equal to a threshold ratio, then judge not upgrade described at least one threshold value; And
(b23) if described area ratio is greater than described threshold ratio, then judge carry out unlocking to the operation of described contact panel and upgrade described at least one threshold value.
7. the false-touch prevention method according to claim 2 or 6, wherein, step (b2) comprises further:
Sequentially determine a specific range threshold value according to each contact area in described dimension information, if described contact area is less than the described threshold value distinguishing valid function and invalid operation, then to described specific range threshold value and described touching object, the sliding distance on described contact panel compares further, and when described sliding distance is greater than described specific range threshold value, then judge carry out unlocking to the operation of described contact panel and upgrade described at least one threshold value.
8. false-touch prevention method according to claim 1, wherein, step (b) comprising:
(b1) a center area and a periphery area of described touching object is calculated according to described touching information;
(b2) if the area ratio between described center area and described periphery area is less than or equal to a threshold ratio, then judge not upgrade described at least one threshold value; And
(b3) if described area ratio is greater than described threshold ratio, then judge whether to upgrade described at least one threshold value according at least one of described dimension information and described object kind of information further.
9. false-touch prevention method according to claim 8, wherein, step (b3) comprises further:
(b31) judge whether the starting area in described dimension information is greater than to distinguish the described threshold value of valid function and invalid operation;
(b32) when described starting area is greater than described threshold value, then lock described touching object to the operation of described contact panel, and judge whether to unlock the operation of described contact panel according to described dimension information and described object kind of information, and judge whether to upgrade described at least one threshold value; And
(b33) when described starting area is less than or equal to described threshold value, then do not lock described touching object to the operation of described contact panel, and judge whether to upgrade described at least one threshold value according at least one of described dimension information and described object kind of information.
10. false-touch prevention method according to claim 9, wherein, in step (b33), if in the special time that described touching object slides on described contact panel or a specific range, contact area between described touching object and described contact panel is neither greater than the threshold value between described valid function interval and described invalid operation interval, then judge to upgrade described at least one threshold value.
11. false-touch prevention methods according to claim 10, wherein, step (c) comprises further:
In described special time or described specific range, to obtain out the Maximum Contact area between described touching object and described contact panel, and upgrade described at least one threshold value according to described Maximum Contact area.
12. false-touch prevention methods according to claim 9, wherein, in step (b32), sequentially determine a specific range threshold value according to each contact area in described dimension information, if described contact area is less than the described threshold value distinguishing valid function and invalid operation, then to described specific range threshold value and described touching object, the sliding distance on described contact panel compares further, and when described sliding distance is greater than described specific range threshold value, then judge carry out unlocking to the operation of described contact panel and upgrade described at least one threshold value.
13. false-touch prevention methods according to claim 1, wherein, step (c) comprises further:
Judge whether described touching object leaves described contact panel according to described touching information; And
If described touching object leaves described contact panel, then upgrade described at least one threshold value according to described dimension information.
14. false-touch prevention methods according to claim 1, wherein, in step (c), if the quantity of the described threshold value be updated is more than one, then adjust described threshold value according to described dimension information, equally to upgrade described threshold value.
15. false-touch prevention methods according to claim 1, wherein, in step (c), if the quantity of the described threshold value be updated is more than one, then according to each described threshold value of adjustment respectively of described dimension information inequality, to upgrade described threshold value.
16. according to claim 1, false-touch prevention method described in 14 or 15, wherein, valid function has further divided one and has moved effective district, effective district is clicked in one fuzzy interval and, described at least one threshold value comprises a first threshold, one Second Threshold and one the 3rd threshold value, and described first threshold is greater than Second Threshold, described Second Threshold is greater than described 3rd threshold value, described first threshold is in order to distinguish the effective district of described movement and invalid operation, described fuzzy interval is positioned at described second, between 3rd threshold value, described 3rd threshold value clicks effective district and fuzzy interval in order to difference.
17. false-touch prevention methods according to claim 1, wherein, in step (c), at least adjust the described threshold value distinguishing valid function and invalid operation.
18. false-touch prevention methods according to claim 1, wherein, after step (c), described false-touch prevention method more comprises:
According to setting up one first fault-tolerant value in order to the described threshold value distinguishing valid function and invalid operation, so that when carrying out cursor and moving, described contact panel locks operation corresponding to described touching object by mistake.
19. false-touch prevention methods according to claim 18, wherein, after step (c), described false-touch prevention method more comprises:
When sensing touching information system in order to carry out gesture behavior, for the described threshold value in order to distinguish valid function and invalid operation increases by one second fault-tolerant value, wherein, described second fault-tolerant value is greater than described first fault-tolerant value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| TW103129576A TW201608487A (en) | 2014-08-27 | 2014-08-27 | Palm rejection method |
| TW103129576 | 2014-08-27 |
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| CN105373302A true CN105373302A (en) | 2016-03-02 |
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